v3.25.2
Borrowings and Other Financing Instruments (Details)
$ in Millions
Jun. 30, 2025
USD ($)
Xcel Energy  
Debt Instrument [Line Items]  
Debt Instrument, Repurchased Face Amount $ 128
Debt Instrument, Repurchase Amount 81
Series Due May 15, 2035 | Bonds  
Debt Instrument [Line Items]  
Debt Instrument, Face Amount $ 600
Debt Instrument, Interest Rate, Stated Percentage 5.05%
Series Due May 15, 2055 | Bonds  
Debt Instrument [Line Items]  
Debt Instrument, Face Amount $ 500
Debt Instrument, Interest Rate, Stated Percentage 5.65%
Series due March 1, 2050 | Bonds | Xcel Energy  
Debt Instrument [Line Items]  
Debt Instrument, Interest Rate, Stated Percentage 2.90%
Series due June 1, 2051 | Bonds | Xcel Energy  
Debt Instrument [Line Items]  
Debt Instrument, Interest Rate, Stated Percentage 2.60%
Series due April 1, 2052 | Bonds | Xcel Energy  
Debt Instrument [Line Items]  
Debt Instrument, Interest Rate, Stated Percentage 3.20%